Histiocytic Sarcoma of the Terminal Ileum Presenting As a Large Ulcerating Lesion: CT Diagnosis.

We report the case of an 84-year-old woman with histiocytic sarcoma arising in the terminal ileum. The lesion was identified on CT of the abdomen as a 10 cm segment of terminal ileum with mild circumferential wall thickening, isoattenuation, and diffuse homogeneous enhancement. The patient was treated with surgery and adjuvant chemotherapy. This case provides an example of when imaging may be useful for the detection of this rare malignancy and its complications.

Testicular Tuberculosis Without Epididymitis Simulating Neoplasm.

We present the case of a 47-year-old man with testicular tuberculosis without epididymal involvement that simulated neoplasm on sonography. The patient also had evidence of contralateral spermatic cord involvement. The diagnosis was made following transinguinal intrascrotal exploration and excisional biopsy of the left spermatic cord mass and right transinguinal radical orchiectomy. Histopathology showed caseating granulomatous inflammation, with positive cultures for Mycobacterium tuberculosis and the patient received antituberculous treatment with satisfactory recovery.

Fracture of the Penis: Demonstration by MRI with Surgical Correlation.

MRI of a 21-year-old man with a penile fracture demonstrated disruption of the tunica albuginea and adjacent hematoma. Both MRI and subsequent retrograde uretrogram showed that the urethra was not injured. The imaging findings were confirmed at surgery, and the penis was successfully repaired.

Traumatic complications from placement of thoracic catheters and tubes.

The volume of critically ill patients requiring stabilization in emergency departments (EDs) throughout the USA has increased from 42 million per year in 1960 to over 92 million in 1990, as reported by Goldstein [Crit Care Clinics 21(1):81-89, 2005] and Rivers et al. [Curr Opin Crit Care 8(6):600-606, 2002]. With the increase in this patient population, the number of procedures, both invasive and noninvasive, performed in the ED to improve clinical outcomes has also increased. Therefore, emergency medicine physicians must add to their repertoire the ability to recognize potentially fatal traumatic complications. This review will provide readers with imaging findings of traumatic complications from placement of thoracic catheters and tubes and briefly discuss pitfalls of performing these procedures. In particular, complications arising from placement of hemodialysis catheters, central venous catheters, Swan-Ganz catheters, chest tubes, nasogastric and feeding tubes, and endotracheal tubes will be reviewed.

Abnormal aneurysmal dilatation of the internal carotid artery on angiography without abnormal finding at surgery: a case report.

After trauma, the next most common cause of subarachnoid hemorrhage (SAH) is aneurysm rupture. Aneurysms can be of any size and shape and most commonly are found at the anterior or posterior communicating cerebral arteries. Although magnetic resonance angiography is improving in diagnostic accuracy, routine catheter angiography is still considered the "gold standard" for diagnosis. We report a case in which an abnormal dilatation of the supraclinoid internal carotid artery was diagnosed as an aneurysm following catheter angiography; at surgery this area appeared normal.